package adtec.util.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;

public class JspCacheFilter implements Filter {

	@Override
	public void destroy() {

	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException {
		
		HttpServletResponse httpresponse = (HttpServletResponse)response;
		
		httpresponse.setHeader("Pragma","No-cache"); 
		httpresponse.setHeader("Cache-Control","no-cache"); 
		httpresponse.setDateHeader("Expires", 0); 



		filterChain.doFilter(request, response);
	}

	@Override
	public void init(FilterConfig config) throws ServletException {

	}

}
